Correct Option (b)
Reason : Air Prevention and Control of Pollution Protection Act come into force in 1981 to control and prevent air pollution. It was amended in 1987. Environmental Protection Act in 1986 and water (Prevention and Control of Pollution) act in 1974.
Correct Option (b) Reason : Air Prevention and Control of Pollution Protection Act come into force in 1981 to control and prevent air pollution. It was amended in 1987. Environmental Protection Act in 1986 and water (Prevention and Control of Pollution) act in 1974.